Copy HTML source into local file and open with Canary or Webkit nightly. The page displays content that threads through a series of CSS regions, the size of each thresholded with min-/max-height CSS. Each time the regionlayoutupdate event fires, the page increments a counter that displays at the top. Expected behavior is for event to fire on the NamedFlow only when: * the regionOverset of any region in the chain changes between fit/empty/overset values. * possibly if there are less significant changes to layout, such as shifts in linebreaks within any of the regions Actual behavior is either: * event fires continuously onload * event fires continuously after resizing page
Taking a quick look, the event fires only when the regions are auto-size regions.
Created attachment 176654 [details] Patch
Comment on attachment 176654 [details] Patch r=me
Created attachment 177140 [details] Patch for landing
Comment on attachment 177140 [details] Patch for landing Clearing flags on attachment: 177140 Committed r136346: <http://trac.webkit.org/changeset/136346>
All reviewed patches have been landed. Closing bug.